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#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------

ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
endif

include $(DEVKITARM)/ds_rules

#---------------------------------------------------------------------------------
# TARGET is the name of the output
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# DATA is a list of directories containing data files
# INCLUDES is a list of directories containing header files
#---------------------------------------------------------------------------------
TARGET          :=      $(shell basename $(CURDIR))
BUILD           :=      build
SOURCES         :=      ../../
DATA            :=      data
INCLUDES        :=      include

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH    :=      -mthumb -mthumb-interwork

CFLAGS  :=      -Wall -O2\
                -march=armv5te -mtune=arm946e-s \
                -fomit-frame-pointer -ffast-math \
                $(ARCH)

CFLAGS  +=      $(INCLUDE) -DARM9
CXXFLAGS        := $(CFLAGS) -fno-rtti -fno-exceptions

ASFLAGS :=      $(ARCH) -march=armv5te -mtune=arm946e-s
LDFLAGS =       -specs=ds_arm9.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)

#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS :=      $(LIBNDS)

#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------

export OUTPUT   :=      $(CURDIR)/lib/libz.a

export VPATH    :=      $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
                        $(foreach dir,$(DATA),$(CURDIR)/$(dir))

export DEPSDIR  :=      $(CURDIR)/$(BUILD)

CFILES          :=      $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES        :=      $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES          :=      $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
BINFILES        :=      $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))

#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
        export LD       :=      $(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
        export LD       :=      $(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------

export OFILES   :=      $(addsuffix .o,$(BINFILES)) \
                        $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)

export INCLUDE  :=      $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
                        $(foreach dir,$(LIBDIRS),-I$(dir)/include) \
                        -I$(CURDIR)/$(BUILD)

.PHONY: $(BUILD) clean all

#---------------------------------------------------------------------------------
all: $(BUILD)
        @[ -d $@ ] || mkdir -p include
        @cp ../../*.h include

lib:
        @[ -d $@ ] || mkdir -p $@
        
$(BUILD): lib
        @[ -d $@ ] || mkdir -p $@
        @$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile

#---------------------------------------------------------------------------------
clean:
        @echo clean ...
        @rm -fr $(BUILD) lib

#---------------------------------------------------------------------------------
else

DEPENDS :=      $(OFILES:.o=.d)

#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(OUTPUT)       :       $(OFILES)

#---------------------------------------------------------------------------------
%.bin.o :       %.bin
#---------------------------------------------------------------------------------
        @echo $(notdir $<)
        @$(bin2o)


-include $(DEPENDS)

#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------